if you want to be able to store your data on your machine
You generally wouldn't keep EKGs on the machine doing the monitoring if you want to keep them around, you'd store them with the patient record so no problem here
not pay rent to keep using your cloud software
It's a web application running on a local server so...
It runs on a local server so once again.... not an issue
not have forced updates remove features or totally break your software
Forced updates is kind of the point of using web software, thats a benefit not a downside.
These are work machines so once again you've listed a benefit. Employees don't exactly have an expectation of privacy on them.
or otherwise be at the mercy of losing everything because of an "update" in the EULA.
You're a bit paranoid aren't you?